I have removed all my code and am concentrating on getting the mapping base display to honour the lat/long entries. I found the following and tried it.
ProjectionInfo wgs = KnownCoordinateSystems.Geographic.World.WGS1984;
ProjectionInfo wgs = KnownCoordinateSystems.Geographic.World.WGS1984;
this.map1.Projection = wgs;
this.map1.Projection.IsLatLon = false;
IsLatLon makes no difference whether true or false to the displayed coordinates. All online maps still show those BIG numbers for x,y in the status line. Can anyone tell me what base they are? Is there a conversion that I can use to apply to my database numbers?